Document Detail


LVAD-induced reverse remodeling: basic and clinical implications for myocardial recovery.
MedLine Citation:
PMID:  16624689     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: With improved technology, increasing clinical experience, and expanding indications for use, left ventricular assist devices (LVADs) are assuming a greater role in the care of patients with end-stage heart failure. Early in the course of LVAD use as a bridge to transplant, it became evident that some patients exhibit substantial recovery of ventricular function, which led to the concept of reverse remodeling. METHODS AND RESULTS: Herein we summarize and integrate insights derived from a multitude of studies that have investigated how LVAD support influences ventricular structural, cellular, extracellular matrix, molecular, biochemical, and metabolic characteristics of the end-stage failing heart. The focus includes a review of the extent and sustainability of reverse remodeling, the important advances in understanding of the pathophysiology of heart failure derived from these studies and the implications of these findings for development of new therapeutic strategies. CONCLUSION: In brief, studies of LVAD-heart interactions have led to the understanding that although we once considered the end-stage failing heart of patients near death to be irreversibly diseased, when given sufficient mechanical unloading and restoration of more normal neurohormonal milieu, a relatively large degree of myocardial recovery is possible. Comparison of effects on right and left ventricles have provided mechanistic insights by implicating hemodynamic unloading as primarily regulating certain aspects of reverse remodeling, neurohormonal factors as regulating other aspects, and joint regulation of still other aspects. As such these observations have driven a shift of thinking of chronic heart failure as a progressive irreversible disease process to a potentially treatable entity.
Authors:
Daniel Burkhoff; Stefan Klotz; Donna M Mancini
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Journal of cardiac failure     Volume:  12     ISSN:  1532-8414     ISO Abbreviation:  J. Card. Fail.     Publication Date:  2006 Apr 
Date Detail:
Created Date:  2006-04-20     Completed Date:  2006-10-18     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9442138     Medline TA:  J Card Fail     Country:  United States    
Other Details:
Languages:  eng     Pagination:  227-39     Citation Subset:  IM    
Affiliation:
J. Skirball Center for Cardiovascular Research, Cardiovascular Research Foundation, Orangeburg, NY 10962, USA.
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MeSH Terms
Descriptor/Qualifier:
Heart / physiopathology
Heart Failure / physiopathology,  therapy*
Heart Ventricles / physiopathology*
Heart-Assist Devices*
Humans
Myocardial Contraction
Time Factors
Ventricular Remodeling*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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